#235583
Closest named color: Deep Sea Blue (#015482). oklch(43.9% 0.093 249.2), rgb(35, 85, 131).
Aa
White text reads best on this color (7.78:1).
About this color
#235583 is a dark, moderately saturated blue. In OKLCH its lightness is 44%, its chroma 0.093 and its hue 249°. Its hue sits on the cool side of the wheel. The nearest named color is Deep Sea Blue (#015482), ΔE 0.018 away. White text reads best on it, at 7.78:1.
| Hue family | Blues |
| Lightness | dark (44%) |
| Chroma | moderately saturated (0.093) |
| Temperature | cool |
| Nearest name | Deep Sea Blue (#015482) |
| Black text | 2.69:1 |
| White text | 7.78:1 |
Values
| HEX | #235583 |
| RGB | rgb(35, 85, 131) |
| HSL | hsl(209, 58%, 33%) |
| OKLCH | oklch(43.9% 0.093 249.2) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #235583 | 7.78:1 | AAA | Lc -91.5 | Preferred for body text |
| Black text on #235583 | 2.69:1 | Fails | Lc 17.3 | Dividers and decoration only |
| #235583 text on white | 7.78:1 | AAA | Lc 86.8 | Fine for body text |
| #235583 text on black | 2.69:1 | Fails | Lc -15.3 | Dividers and decoration only |
Tints and shades
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 800.
-
Step 50
50
#F2F6FA
oklch(97.1% 0.007 247.9)
-
Step 100
100
#E2EBF4
oklch(93.6% 0.016 248)
-
Step 200
200
#CADBED
oklch(88.4% 0.031 249.7)
-
Step 300
300
#A6C4E3
oklch(80.9% 0.055 249.4)
-
Step 400
400
#75A5D5
oklch(70.6% 0.088 249.2)
-
Step 500
500
#508ECA
oklch(63.1% 0.111 249.3)
-
Step 600
600
#3177B7
oklch(55.6% 0.122 249.3)
-
Step 700
700
#23649D
oklch(49.1% 0.112 248.9)
-
Step 800
800 (this color)
#235583
oklch(43.9% 0.093 249.2)
-
Step 900
900
#204466
oklch(37.7% 0.072 249.1)
-
Step 950
950
#13283C
oklch(27% 0.046 248.8)
#235583 with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #405785 | 0.032 |
| Deuteranopia (no green cones) | #334E82 | 0.024 |
| Tritanopia (no blue cones) | #006066 | 0.069 |
| Achromatopsia (no color) | #525252 | 0.093 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #235583
#235583
oklch(43.9% 0.093 249.2)
- #734705
#734705
oklch(43.9% 0.093 68.8)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #235583, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Sea Blue #015482 ΔE 0.018
- Dusk Blue #26538D ΔE 0.019
- Light Navy #155084 ΔE 0.020
- Light Navy Blue #2E5A88 ΔE 0.020
- Denim Blue #3B5B92 ΔE 0.040
- YInMn Blue #415A77 ΔE 0.043
- Cobalt #1E488F ΔE 0.047
- Dusk #4E5481 ΔE 0.050
Use #235583 in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.